import re

from django.contrib.auth.backends import ModelBackend
from users.models import User
# 重写jwt返回结果方法
def jwt_response_payload_handler(token,user=None,request=None):
    return {
        'token':token,
        'username':user.username,
        'user_id':user.id
    }

class UsernameMobileAuthBackend(ModelBackend):
    '''重写django原有的用户验证方法'''

    def authenticate(self, request, username=None, password=None, **kwargs):
        try:
            # 判断是否是手机号
            if re.match(r'^1[3-9]\d{9}$',username):
                user = User.objects.get(mobile=username)
            else:
                user = User.objects.get(username=username)
        except:
            user = None

        # 验证密码
        if user is not None and user.check_password(password):
            return user